fix installer breaking when trying to remove missing dir

package.json

@@ -90,7 +90,7 @@
         "c9.ide.help.support": "#60e88f5680",
         "c9.ide.imgeditor": "#ed89162aa7",
         "c9.ide.immediate": "#6845a93705",
-        "c9.ide.installer": "#7dae8e752a",
+        "c9.ide.installer": "#5e327f4f54",
         "c9.ide.mount": "#896ebf836e",
         "c9.ide.navigate": "#055a1f1a80",
         "c9.ide.newresource": "#f1f0624768",